Improvement in pumps



UNITED STATES PATENT OFFICE.

WILLIAM D. BAXTER, OF NEIN? YORK, N. Y., ASSIGNOR TO SANDS & BAXTER, OF SAME PLACE.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 137,527, dated April 8, 1873; application led February 7, 1873.

To all whom `it may concern:

Be it known that I, WILLIAM D. BAXTER, of the city, count-y, and State of New York, haveinvented certain Improvements in Pu inps, of which the following is a specitication:

The object of my invention is to remedy certain defects in double-acting lift and force pumps for which Letters Patent No. 83,027 were granted to me, dated October 13, 1868. Destruction of the pumps, great inconvenience and damage by water have been the results ot" not being able to suiiiciently empty the pnInp of the water to prevent the bursting of the cylinders in cold weather. In order to overcome these difliculties, I make use ot' a double-acting cock, placed between the two cylinders, by which I am enabled to empty the water ont of the upper part and out ot' the cylinders down into the reservoir and outlet-pipe below with one movement of the cock without having to empty the pump of the water by use of separate cocks and employment of separate vessels for carrying off the Water.

In order to more fully describe my invention, I refer to the accompanying drawing forming a part of this specifica tion.

Figure I is a vertical section of said pump embodying my invention. Fig. Il is a cut scction through line .fr x, Fig. I.

uy is the base; I), the inlet-water pipe, which is placed at the bottom or side of the reservoir R in order to canse the water to run out ot' R, and also for placing` the doubleacting cock C and the pipes or channels A, B, D, and E between the cylinders d d. F is the cockcylinder, into which the channels or pipes A, B, l), and E lead. In this cylinder is placed the cock U, with handle H, which former is made hollow, with four openings, I, J, K, and L, which are made to correspond with the holes in the pipes or channels A, B, D, and E.

l y ceasing to pump one of the piston-val ves c is left at the bottom of one of the cylinders d, while the other valve e is left at the top ol' the cylinder cl by placing the lever l in a slanting position. By placing the handle H of the cock C parallel with the inlet-pipe b the Opeliings in the cock-barrel I, J, K, and L come opposite the openings A, B, D, and E, by which the water in the upper part is made to dow down into the lower part or reservoir It, from which it is emptied into the inlet-water pipe b. By turning the handle Hof the cock O to the right or left the openings A, B, D, and E are shut oil by the cock O, and the pump is worked as ordinarily.

Having thus fully described my invention, I desire to claim- The doubleacting hollow cock O with openings I, J, K, and L, cylinder F with pipes or channels A, B, D, and E, in combination with the pump-cylinders d d, reservoir R, and inletpipe b, substantially as and for the purpose hercinbeiorc set forth.

This specification signed this 6th day of Fehrnary, 1873.

XVM. l). BAXTER.

\Vitnesses:

FRANKLIN BARRITT, RICHARD GERNER.. 

